public Switch(int pins) : base(pins == 1 ? 6 : pins)
{
SwitchPins = pins;
SwitchState = Enumerable.Repeat(false, pins == 1 ? 1 : pins / 2).ToArray();
SwitchType = SwitchTypes.Momentary;
IcType = ICType.ic4;
ModelName = "momentary_switch";
WriteToNodes = false;
}
//given the occupancy of the three blocks, the switch determines whether it should change or not
//this boolean expression should be changeable by the PLC program!!!! later
//changing to directions! positive number means train heading towards switch from that direction
//this function assumes a unidirectional source, t1, and t2 but can easily be extrapolated to bidirectional given
public int?determineSwitchState(Switch sw, int?s, int?t1, int?t2)
{
Console.WriteLine("Determining switch : " + sw.switchId + " - " + switchTypes[sw].ToString());
Console.WriteLine(s + " : " + t1 + " : " + t2);
//Switch sw = switches.Find(x => x.switchId == switchId);
SwitchTypes type = switchTypes[sw];
if (s == null)
{
s = 0;
}
if (t1 == null)
{
t1 = 0;
}
if (t2 == null)
{
t2 = 0;
}
switch (type)
{
case SwitchTypes.Loop1:
return(Loop1(sw, s, t1, t2));
case SwitchTypes.Loop2:
return(Loop2(sw, s, t1, t2));
case SwitchTypes.BiLoop:
return(BiLoop(sw, s, t1, t2));
case SwitchTypes.SplitIn:
return(SplitIn(sw, s, t1, t2));
case SwitchTypes.SplitOut:
return(SplitOut(sw, s, t1, t2));
default:
return(-1);
}
}
//id is switch id
//which branch determines whether source, t1, or t2 is to be gotten
public int?getSwitchDirection(Switch sw, int whichBranch)
{
//Switch sw = switches.Find(x => x.switchId == id);
SwitchTypes type = switchTypes[sw];
if (whichBranch > 2 || whichBranch < 0)
{
return(null);
}
switch (type)
{
case SwitchTypes.Loop1:
if (whichBranch == 0)
{
return(0);
}
else if (whichBranch == 1)
{
return(-1);
}
else if (whichBranch == 2)
{
return(1);
}
break;
case SwitchTypes.Loop2:
if (whichBranch == 0)
{
return(0);
}
else if (whichBranch == 1)
{
return(1);
}
else if (whichBranch == 2)
{
return(-1);
}
break;
case SwitchTypes.BiLoop:
if (whichBranch == 0)
{
return(0);
}
else if (whichBranch == 1)
{
return(0);
}
else if (whichBranch == 2)
{
return(0);
}
break;
case SwitchTypes.SplitIn:
if (whichBranch == 0)
{
return(-1);
}
else if (whichBranch == 1)
{
return(1);
}
else if (whichBranch == 2)
{
return(1);
}
break;
case SwitchTypes.SplitOut:
if (whichBranch == 0)
{
return(1);
}
else if (whichBranch == 1)
{
return(-1);
}
else if (whichBranch == 2)
{
return(-1);
}
break;
default:
return(null);
}
return(null);
}
